1. Showing a very Mexican side of you
2. practice of Mexican belief or heritage
3. showing pride of being Mexican
They showed their mexicanism by walking down broadway with the Mexican flag waving up high on Cinco de Mayo
by Rusha! Ahoooa!! July 27, 2008
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Is a highly contagious disease, those who suffer from it will eventually become Mexican. The symptoms include a browning or tanning of the skin, attempts at speaking Spanish, growing a mustache, delusions of being President of Mexico, and/or throwing up at hearing anything that is not Latin music.
Since Keith started dating a Mexican he began suffering from Mexicanism. Because of the disease he attempts to speak Spanish, stands out in the sun for prolonged periods of time, and listens to Latin Music on his Zune.
by LaChicaCelestial May 29, 2009
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A Mexican person born in Mexico who now lives in America. Not Mexican American
Maria was married to a Mexican Mexican who had another wife and family in Mexico.
by ms42O February 20, 2015
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A person of nationality of the country of Mexico.

Contrary to popular misconception, "Mexican" is not a racial or ethnic group. Though the majority of Mexicans are Amerindians (pure-bloods and mixed-bloods "mestizos"), there are a substantial number of non-Indian Mexicans, such as the Spanish whites that are effectively the ruling class of the country, blacks, Jews, Arabs (Salma Hayek, telecom magnate Carlos Slim), etc.

A "Mexican-American" is a Mexican national in the U.S. Though the U.S. born children of Mexican immigrants usually claim to be "Mexican," this makes no more sense than U.S. born children of Canadian immigrants claiming to be Canadian.
Idiot: Uhm, Vicente Fox ain't brown; how's he former president of Mexico?

Mexican: /facepalm
by Agnapostate February 23, 2010
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A person born in or has heritage in Mexico. It is not a race, it is a nationality. Like people from the U.S., they can have a variety of looks (i.e. blonde haired and blue eyed, dark haired and light eyed etc.) Not all Mexicans are dark skinned, dark haired and dark eyed. Like people from the U.S., Mexicans can have descent from the native people (i.e. Aztecs) and/or Europeans.
Person 1: Hey look at that American guy!

Person 2: What if he is Mexican?

Person 1: No he can't be! He's got blonde hair and blue eyes!

Person 2: Dude, Mexicans have all kinds of looks. Don't be ignorant.
by nonignorantperson October 28, 2010
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What, you expect me to be racist? I don't know anything about Mexico
"I am a Mexican"

"Why"

"Did you just fucking ask why I'm Mexican?"
by DiamondGamer9 January 8, 2021
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Probably the only term that is used to classify all hispanics living in america by dumbasses.
Brian: Wow check out that hot Mexican babe Johnny!

Johnny: Um, shes not from Mexico. Shes from Puerto Rico.
by Clm850 March 28, 2008
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